cell theory 1.)all living things are made up of cells. 2.)cells are the smallest working units of...
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Cell The smallest unit capable of performing life functions.TRANSCRIPT
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Cell Theory• 1.)All living things are made up of cells. • 2.)Cells are the smallest working units of
all living things. • 3.)All cells come from preexisting cells.
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Two Cell CategoriesProkaryotes v.s.
EukaryotesPro=NO Eu (you)=Do
No nucleus NucleusNo organelles Many
organellesOnly Bacteria All Other Cells
Plant AnimalBacteria
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Cell
The smallest unit capable of performing life functions.
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Examples of CellsAmoeba Proteus
Plant Stem
Red Blood Cell
Nerve Cell
Bacteria
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Cell PartsOrganelles- Specialized
structures in eukaryotic cells that perform specific functions.
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Surrounding the Cell
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Cell Membrane• A semi-permeable
membrane controls what enters/exits the cell. (plants AND animals)
http://library.thinkquest.org/12413/structures.html
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Cell Wall• The cell wall gives the
plant cell structure and support
http://library.thinkquest.org/12413/structures.html
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Inside the Cell
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Nucleus
• The nucleus is the brain of the cell. Controls cell activities and protects the DNA
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Chromosomes• Chromosomes (made
of DNA in the nucleus) have instructions for your traits
http://library.thinkquest.org/12413/structures.html
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Cytoplasm• Gel-like mixture called
cytoplasm is surrounded by the cell membrane.
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Endoplasmic ReticulumThe Rough Endoplasmic
Reticulum moves materials around in cell (has ribosomes attached)
http://library.thinkquest.org/12413/structures.html
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Inside the cell
• The Smooth Endoplasmic Reticulum helps makes lipids
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Inside the Cell (honors) slide• Mitochondria breaks down
food/oxygen to create energy/power in the form of carbohydrates for the cell.
• Has it’s own DNA like the nucleus (other organelles don’t).
• Reproduces within the cell based on demand
http://library.thinkquest.org/12413/structures.html
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Inside the Cell• Proteins are made by
the ribosomes
http://library.thinkquest.org/12413/structures.html
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Golgi Bodies• Protein are modified,
packaged, sorted and shipped by the Golgi Bodies.
http://library.thinkquest.org/12413/structures.html
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Inside the Cell (honors slide)• Photosynthesis
(conversion of water, sunlight, and carbon dioxide into carbs) happens in the chloroplast of only plant cells
• Has it’s own DNA and reproduces within the cell (similar to mitochondira)
http://library.thinkquest.org/12413/structures.html
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Lysosome• Lysosomes comes from
Golgi Body• They breaks
down/digest: proteins, nucleic acids, carbohydrates, phospholipids
• Breaks down cells when it’s time for them to die
• Removes waste from cells
http://library.thinkquest.org/12413/structures.html
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Vacuoles• Vacuoles are storage
sacs wastes and water.
http://library.thinkquest.org/12413/structures.html
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Cytoskeleton
• Cytoskeletons are thin tubes/filaments– Give shape/support to
cell from inside– (Like tent poles hold
up a tent)